Bios Update for Award Modular v 4.5PG - any such animal?

I'm trying - and failing - to have my system recognise an IBM Deskstar model ICL35L040AVER07-0 41Gb ATA100 7200rpm drive. Spent all last Sunday on it with b-in-law ( a Woodstock 'techie' ), and got nowhere. Didn't see it. Another, later machine did....

I've just got a Seagate model 8T330621A U Series 5 30Gb in the hope that the '4.51PG' bios can see that.

It could see a previous 20Gb drive by Samsung - which failed.

Most advice is that I need a BIOS upgrade. Some advice is to change my mo-bo - not so easy now with a Super Socket 7..... IBM/Greenock suggest a 'Dynamic Data Overlay'utility. So do Seagate/Amsterdam....